Molding-machine.



W. LEWIS.

MOLDING MACHINE.

APPLICATION rum) NOV.13, 1009.

1 ,071 964;, Patented Aug. 26, 1913.

4 MEETS-SHEET 1.

fV/TIVESSES: //VVE/Vr0/? myr-edlewels BY 1 J ATTO/MEY.

W. LEWIS.

MOLDING MACHINE.

APPLICATION FILED NOV. 13, 1909.

1,071,064. Patented Aug. 26, 1913.-

4 SHEETS-SHEET 2.

FIRE. r

WITNESSES; m flvrofi I Wredlewds W W W W. LEWIS.

MOLDING MACHINE.

urmoumn PLLED nov.1s, 1909.

1,071,064. Patented Aug. 26, 1913.

4 SHBET8SHEET 3.

.Zewds W. LEWIS.

MOLDING MACHINE.

APPLICATION FILED NOV 12, 1009 Patented Aug. 26, 1913.

4 SHEETS-SHEET 4.

lf/VEA/MR M ZfredZewds WIN/8858.-

Arm/5W5! UNITED STATES PATENT OFFICE.

'WILFRED LEWIS, F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE 'IABOBMANUFACTURING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION orPENNSYLVANIA.

MOLDING-MACHINE.

Patented Aug. 26, 1913;

Application filed November 18, 1909. Serial No. 527,849.

To all whom it ma concern -Be it known t at I, \VILFRED LEWIS, a

citizen of the United States, and a resident of Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, have invented certainnew and useful Improveadapted to squeeze or ram or jar and to drawpatterns by power, and which is also adapted to draw comparatively deeppat- "terns and is otherwise possessed of the advantages of a roll-overtype of machine.

Other objects of the invention are to provide for adjusting the machineto the weight of the flask and also to the depth of the flask and toprovide appropriate connections for operating the machine to cause it toperform its various functions.

A machine, being one embodiment of the invention, is illustrated in theaccompanying drawings, in which 7 Figure 1, is a front view with partsbroken away. Fig. 2, is a top or plan view with the ramming headremoved. Fig. 3, is a side view of the machine with parts broken away,and Fig. I, is a view of the other side of the machine with parts brokenaway.

In the complete machine of this invention parts which constitute a powerroll-over machine, to be prev rily described, are

mounted on a pow Pi cylinder which squeezes, rams or j: mm which alsodraws patterns. Throw iiulti he following depistons and cylinders andparts carrici r actuated thereby, I desire to state that I\"HIIQIIIPliIIL a rever- 5:11 of the cylinders and pistons in relationto the parts which they carry or operate, since the functions ofcylinders and pistons are interchangeable.

I. a ramp 1y lica'l pivoted as at '2 and having-its cii" portion 3adjustable as is indicated at i.

is a piston which i movable vertically in a cvlinder (3. The huder (3and pivotal con nections for the ramming head may be connected togetherby the base 7 of the machine. The upper portion of the piston 5constitutes a flask support 8.

9, is a flask rest which is shown as connected with the cylinder 6, orwith the base of the machine, although it may be otherwise connected andarranged so as to receive a flask.

10, are flask carrying arms pivoted intermediate of their length to theflask support as at a or to some other part connected with the piston 5and they constitute a hinge frame.

12, are stops for positioning the arms to draw the patterns. Between theinner ends of the arms 10 and a portion of the flask support, or someother member connected with the piston 5, there are complemental pistonsand piston rods 13 and cylinders 14, which serve to turn the hinge frame10. The rod 13 is pivoted at b to the stand 0, bolted to the flasksupport 8. The cylindersbt are pivoted at (Z to the ends of the hingeframe 10. 7

In use a pattern plate and a flask A, are attached to the hinge frame10, so that the flask by way of the pattern plate rests on the flasksupport 8 and piston 5 may be caused to rise so as to squeeze thecontents of the flask against the ramming head 3, or, if desired, thepiston may be caused to rap idly rise and ram the contents of the flaskby rapidly striking the ramming head, or if desired. the piston may becaused to rise and rapidly fall, so as, to jar the contents of theflask: thus the machine may be used for power squeezing, ramming orjarring. The projection 15 at the lower end of the piston 5 is usefulwhen the machine is operated for jarring. The complemcntal cylinder andpiston and piston rod connections 14 and 13, constitute a power devicefor swinging the hinge frame 10, and thus causing it to transfer theflask from the flask support, turn it over and place it on the flaskrest 9. The stops .12. fix the hinge frame 10 in proper position inrespect to the flask sup iiort, S0 that y raising the'piston 5 the framel0 as ends and draws thc pattern by power. 1". is a clamp for connectingand disconnccting' the flask A. and hinge frame 10.

Cji

' pattern plate can be readily positioned on the flask support withoutinvolving the use of a stop of this character.

17, is a vibrator which may be used in connection with the drawing ofthe pattern.

18, is a spring interposed between the ramming head and a suitablebracket 19,

for the purpose of balancing the ramming head so that it can be readilyturned into vertical position for. use and -out of that position topermit of the filling of the flask.

The flask rest 9 is shown as provided with an adjustable cradle 20 andwith a shank 21. The shank 21 works freely through an opening in abracket 22. The bracket 22 is at tached to the cylinder 6, which is apart of the base 7.

23, is a bell-crank lever journaled througl'i the bracket 22 and havingone of its arms connected by a link 24 with the shank 21 of the rest.The other arm 25 of the bell-crank lever is connected with one end of aspring 26, the tension of which can be adjusted by means of theadjusting screw 27. The purpose of this spring is to adjust the rest tothe weight of the flask. The bracket 22 together with the parts which itcarries, may be adjusted up and down by means of the adjusting bolts 28,(Fig. 1), so as to accommodate the rest to flasks of different depths.There are, of course, connections for conveying appropriate fluid, asair, to the various cylinders and to the vibrator. Air is conveyed tothe cylinder 6 by way of the connection 29. There is in this connectiona valve 30, which when depressed admits air to the cylinder and whichwhen elevated cuts off the supply of air to the cylinder 6 and connectsits interior with the atmosphere by way of an exhaust opening 31. Thisvalve is in effect made in two parts, each normally elevated. In thisposition an upward projection 32 on the lower part clears the exhaustopening 31, but when the upper part of the valve is depressed thisprojection closes the exhaust opening and serves as a means by which theupper part in descending pushes down the lower part.

33, is a lever for working the valve which controls the cylinder 6 andthis lever is provided with laterally extending projections 34 Fig. 2which cooperate with a segment 35 carried by the side bar a of theramming l ead Fig. 4 so that the lever and consequently the valve is ofnecessity operated at In Fig. 4 the connection between the side bar ofthe ramming head and the se out is shown at y. The lever is also provied with auxiliary handles 36 and 41 which control the valved connections37 of the cylinders 14 and the connections 38 of the vibrator 17 The.auxiliary handles 36 and 41. may be connected with a common center-piecepivoted to the handle 33 and this center-piece pushes the spindles ofthe valves of the connections 37 and 38. The segment 35 clears the upperlaterally extending lug 34 Fig. 4, b belng out of range of its end andermits t, e main operating valve to be opened freely when the yoke orramming head 1 is up in position to squeeze a mold and at the same timethe mold may be jarred by dropping the plunger 5, before the mold comesin contact with the ramming block 3. The segment 35 also prevents themain operating valve from being opened freely when the yoke is thrownback because the segment underlies the laterally extending lug, butpermits it to be opened very slightly to draw a pattern. For this latterpurpose, clearance is provided between the faces of upper lug 34 and ofthe segment. As the pattern is being thus drawn, the thumb-latch 41 isdepressed to start the vibrator. The lower lug 34 works under thesegment and limits the upward movement of the lever 33. Finger latch 36controls the admission and exhaust from roll-over cylinders 14.

39, are guide pins connected with the flask support and adapted toworkthrough eyes 42 connected with the cylinder 6. Springs 40 may beprovided for cushioning the movements of the flask support in respect tothe piston 5.

The operation of the machine may be described as follows: The frame 10is turned into the position shown in Figs. 2 and 3, so that the patternboard or pattern carrier and the flask a are supported on the head 8.The frame 10 may also rest on the head 8.

The flask is then filled with sand and if it is to be squeezed orrammed, the head 3 is turned up into place and the piston and cylinder 5and 6 are actuated either to squeeze thesand against the part 3 or toram it against the part 3 by the repetition of a number of impacts. Thehead 8 can be made to rise an fall rapidly and thus jar the sand. Afterth sand has been rammed in any of these ways it is'struck off and thebottom board is applied and clamped by the clamp 16, which also clampsthe pattern board, half-flask and bottom board and frame 10 together.The head is in the position shown in the drawings and the piston andcylinders 13 and 14 are operated so as the proper time and in the propermanner. i to turn the frame 10 into the position shown in Fig. 4,,incontact with its stop 12 with the flask on the support 9. The piston andcy-linder'5 and 6 .are then actuated slowly,-

while the vibrator 17 is in operatiomthus drawing the pattern from thesand. The flask A is then removed and the described operation repeated,use being made, if desired, of the pistons and cylinders 13 and .14 forturnin over the frame 10 and pattern carrier an patterns into theposition first described. r

What I .claim is:

1. The combination of a cylinder and piston constituting a flasksupport, a flask rest, flask carrying arms pivoted to the piston andadapted to swing the flask from the support to the rest, complementalpistons and cylinders interposed between the arms and the firstmentioned piston for turning the former, stops for positioning the armsto draw the patterns, and connections for the cylinders, substantiallyas described.

2. Ihe combination of a cylinder and piston constituting a flasksupport, a flask rest, flask carrying arms pivoted tothe piston andadapted to swing the flask from the support to the rest, complementalpistons and cylinders interposed between the arms and the firstmentioned piston for turning the former, stops for positioning the armsto draw the patterns, connections for the cylinders, and a ramming head,substantially as described.

3. In a molding machine the combination of a piston, fluid connectionsfor the piston, a pattern frame marginally hinged to the piston, stopsinterposed between the frame and p ston and movable with the latter, andpower means for turning the pattern frame, substantially as described.

4. In combination a power roll-over molding machine including amarginally hinged frame and frame'stops and means for turning the frame,a movable piston with which the frame and means and stops are connectedand on which said machine is mounted, a cylinder for actuating thepiston, connections for the cylinder, and a ramming head,

.substantially as described.

5. In combination a'power roll-over molding machine including amarginally hinged frame and frame stops and means for turning the frame.a movable piston with which the frame and means and stops are connectedand on which said machine is mounted, a cvlinder for actuating thepiston, connections for the cylinder, and a flask rest carried by thecylinder, substantially as de scribed.

6. In combination a power roll-over molding machine including amarginally hinged frame and frame stops and means for turning the frame,a movable'piston with which the frame and means and stops are connectedand on which said machine is mounted, a cylinder for actuating thepiston, connectrons for the cylinder, a flask rest carried by thecylinder, and a ramming head, substantially as described.

7. In combination a powerroll-overm'olding machine, a movable piston onwhich said machine is mounted, a cylinder for the piston, a flask restaflorded a range of vertical motion, and adjustable means for cushioningthe flask rest, substantially as described.

8. In combination a power roll-over molding machine, a movable piston onwhich said machine is mounted, a cylinder for the piston, a flask rest,and a bracket having adjustable connection in respect .to the cylinderand adapted to support the rest, substantially as described.

9. In combination a power roll-over mold: ing machine, a movable pistonon which said machine is mounted, a cylinder for the piston, a flaskrest, a bracket having adjustable connection in respect to the cylinder,and an adjustable spring interposed between the flask rest and bracket,substantially as described. Q

10. In a molding machine, a flask carrier, and fluid pressure means forjolting the same and for rocking such carrier to its stripping position.

11. In a molding machine,a flask carrier, and pneumatic means forjolting the same and. for rocking such carrier to its strippingposition. A v

12. In a molding machine, a flask supporting member,'and pneumaticallyoperated mechanism to jolt said member and to swing it in a verticalplane into a stripping position.

13. In a molding machine, the combination with a flask carrier mountedto swing in a vertical plane to invert the flask, of

pneumatically actuated mechanism connected withsaid carrier to jolt theflask and to then eflect the swinging or rocking over thereof.

14. In a machine of the character described, the combination of avertically reciprocable plunger provided with a top constituting afilling stand, means for re: ciprocatiug said plunger to jar said stand,a pattern holder pivotally attached to one edge of said stand, and amember similarly pi'votally attached to said, stand for detachablysecuring a mold to said holder.

15. In a machine of the character described, the combination with aparting stand: of a vertically reciprocable plunger adjacent thereto andprovided with a top constituting a filling stand; means for reswung overin reverse position onto said In testimony whereof I have hereuntosigned my name.

ciprocating said plunger to jar said stand; a pattern plate holderpivotally attached to one edge of said stand and adapted to be WILFREDLEWIS.

\Vitnesses CLIFFORD K. CAssEL, K. M GILLIGAN.

